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首页> 美国政府科技报告 >Memory-Bit Selection and Recording by Rotating Fields in Vortex-Core Cross-Point Architecture.
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Memory-Bit Selection and Recording by Rotating Fields in Vortex-Core Cross-Point Architecture.

机译：通过旋涡核心交叉点架构中的旋转场进行存储器位选择和记录。

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摘要

In one of our earlier studies (Appl. Phys. Lett. 92, 022509 (2008)), we proposed a concept of robust information storage, recording and readout, which can be implementaed in nonvolatile magnetic random-access memories and is based on the energetically degenerated twofold ground states of vortex-core magnetizations. In the present study, we experimentally demonstrate reliable memory-bit selection and information recording in vortex-core cross-point architecture, specifically using a two-by-two vortex-state disk array. In order to efficiently switch a vortex core positioned at the intersection of crossed electrodes, two orthogonal addressing electrodes are selected, and then two Gaussian pulse currents of optimal pulse width and time delay are applied. Such tailored pulse-type rotating magnetic fields which occurs only at the selected intersection is prerequisite for a reliable memory-bit selection and low-power-consumption recording of information in the existing cross-point architecture.

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